Home / 288,025,613.32-431,863,464.84-112,938,890.89

Finding the Fourth Proportional to 288,025,613.32, 431,863,464.84 and 112,938,890.89

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Solution

The fourth proportional to 288,025,613.32, 431,863,464.84 and 112,938,890.89 is: 169,339,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,025,613.32 : 431,863,464.84 = 112,938,890.89 : x
  2. Step 2: Convert to fraction form
    288,025,613.32/431,863,464.84 = 112,938,890.89/x
  3. Step 3: Cross multiply
    288,025,613.32x = 431,863,464.84 × 112,938,890.89
  4. Step 4: Simplify right side
    288,025,613.32x = 48,774,180,733,693,344
  5. Step 5: Solve for x
    x = 48,774,180,733,693,344/288,025,613.32
  6. Step 6: Final answer
    x = 169,339,733.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.